Answer:
4,050 cubic inches
Step-by-step explanation:
To find the volume of the cube, use the volume formula for a rectangular prism V = l*w*h and for a pyramid V = 1/3 l*w*h.
Rectangular prism
Substitute l = 15, w = 15, and h = 15.
V = 15*15*15 = 3375 cubic inches
Triangular prism
Substitute l = 15, w = 15 and h = 9.
V = 1/3*15*15*9 = 675 cubic inches
Together the volume will be 3375 + 675 = 4,050.
